/* ==========================================
   Rocket doge: Deep Sea Blast
   Ocean Deep Blue Theme - Mobile First
   ========================================== */

/* CSS Variables */
:root {
  /* Ocean Deep Blue & Coral Color Scheme */
  --primary-blue: #0077BE;
  --primary-blue-dark: #005A8C;
  --primary-blue-light: #3399D6;
  --secondary-coral: #FF7043;
  --secondary-coral-dark: #F4511E;
  --accent-orange: #FF9800;
  --accent-cyan: #00BCD4;
  
  /* Neutral Colors */
  --bg-cream: #F0F8FF;
  --bg-white: #FFFFFF;
  --text-dark: #1A1A2E;
  --text-gray: #4A5568;
  --border-gray: #E2E8F0;
  
  /* Typography */
  --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-display: 'Arial Black', 'Helvetica Bold', Arial, sans-serif;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 12px 24px rgba(0, 0, 0, 0.18);
  
  /* Animation */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* Reset & Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: 60px;
}

body {
  font-family: var(--font-primary);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-dark);
  background-color: var(--bg-cream);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--primary-blue);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--primary-blue-dark);
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* Header Styles (Mobile First) */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 56px;
  background: var(--bg-white);
  box-shadow: var(--shadow-sm);
  z-index: 1000;
  padding: 0 var(--spacing-sm);
}

.header-container {
  max-width: 1200px;
  height: 100%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.header-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
}

.header-title {
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-dark);
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-link {
  display: none;
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-gray);
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: var(--primary-blue);
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.5rem 0.75rem;
  background: var(--primary-blue);
  color: var(--bg-white);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  min-width: 44px;
  min-height: 44px;
  justify-content: center;
}

.nav-cta:hover {
  background: var(--primary-blue-dark);
  transform: translateY(-2px);
}

.nav-cta:active {
  transform: translateY(0);
}

.cta-icon {
  width: 20px;
  height: 20px;
}

.cta-text {
  display: none;
}

/* Hero Section (Mobile First) */
.hero {
  margin-top: 56px;
  padding: var(--spacing-xl) var(--spacing-sm);
  background: linear-gradient(180deg, var(--bg-white) 0%, var(--bg-cream) 100%);
  position: relative;
  overflow: hidden;
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-lg);
}

.hero-content {
  text-align: center;
  max-width: 600px;
}

.hero-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-md);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.hero-title {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 900;
  line-height: 1.2;
  color: var(--primary-blue-dark);
  margin-bottom: var(--spacing-sm);
}

.hero-subtitle {
  font-size: 1.125rem;
  line-height: 1.6;
  color: var(--text-gray);
  margin-bottom: var(--spacing-lg);
}

.hero-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-lg);
}

.hero-visual {
  width: 100%;
  max-width: 500px;
}

.hero-banner {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
}

.wave-decoration {
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 60px;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 120" preserveAspectRatio="none"><path d="M321.39,56.44c58-10.79,114.16-30.13,172-41.86,82.39-16.72,168.19-17.73,250.45-.39C823.78,31,906.67,72,985.66,92.83c70.05,18.48,146.53,26.09,214.34,3V0H0V27.35A600.21,600.21,0,0,0,321.39,56.44Z" fill="%23F0F8FF"></path></svg>') no-repeat center bottom;
  background-size: cover;
}

/* Button Styles */
.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 0.875rem 1.5rem;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  transition: all var(--transition-normal);
  min-height: 56px;
  text-align: left;
  position: relative;
}

.btn-primary {
  background: var(--primary-blue);
  color: var(--bg-white);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background: var(--primary-blue-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: #2a2a2a;
  color: var(--bg-white);
  opacity: 0.55;
  filter: grayscale(0.6);
  cursor: not-allowed;
  box-shadow: none;
}

.btn-secondary:hover {
  transform: none;
  box-shadow: none;
}

.btn-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.btn-label {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1.2;
}

.btn-small {
  font-size: 0.625rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.9;
  font-weight: 400;
}

.btn-large {
  font-size: 1.125rem;
  font-weight: 700;
}

.coming-soon-badge {
  position: absolute;
  top: -8px;
  right: -8px;
  background: var(--text-gray);
  color: var(--bg-white);
  font-size: 0.625rem;
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  letter-spacing: 0.05em;
}

/* Section Styles */
.section-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-2xl) var(--spacing-sm);
}

.section-title {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 900;
  text-align: center;
  color: var(--primary-blue-dark);
  margin-bottom: var(--spacing-sm);
}

.section-subtitle {
  text-align: center;
  font-size: 1.125rem;
  color: var(--text-gray);
  margin-bottom: var(--spacing-xl);
}

/* Features Section */
.features {
  background: var(--bg-white);
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

.feature-card {
  background: var(--bg-cream);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  transition: all var(--transition-normal);
  border: 2px solid transparent;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-blue-light);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-sm);
  display: inline-block;
  animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
}

.feature-card:nth-child(1) .feature-icon { animation-delay: 0s; }
.feature-card:nth-child(2) .feature-icon { animation-delay: 0.2s; }
.feature-card:nth-child(3) .feature-icon { animation-delay: 0.4s; }
.feature-card:nth-child(4) .feature-icon { animation-delay: 0.6s; }
.feature-card:nth-child(5) .feature-icon { animation-delay: 0.8s; }
.feature-card:nth-child(6) .feature-icon { animation-delay: 1s; }

.feature-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-blue-dark);
  margin-bottom: var(--spacing-xs);
}

.feature-description {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--text-gray);
}

/* Screenshots Section */
.screenshots {
  background: linear-gradient(180deg, var(--bg-white) 0%, var(--bg-cream) 100%);
  overflow: hidden;
}

.screenshots-carousel {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.screenshots-carousel::-webkit-scrollbar {
  display: none;
}

.screenshots-track {
  display: flex;
  gap: var(--spacing-md);
  padding: 0 var(--spacing-sm);
}

.screenshot-item {
  flex-shrink: 0;
  width: 280px;
  scroll-snap-align: center;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition-normal);
}

.screenshot-item:hover {
  transform: scale(1.02);
}

.screenshot-item img {
  width: 100%;
  height: auto;
  display: block;
}

/* Download CTA Section */
.download-cta {
  background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
  color: var(--bg-white);
  padding: var(--spacing-2xl) var(--spacing-sm);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.download-container {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.download-title {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 900;
  margin-bottom: var(--spacing-sm);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.download-subtitle {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-xl);
  opacity: 0.95;
}

.download-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  max-width: 400px;
  margin: 0 auto;
}

.btn-download {
  background: var(--bg-white);
  color: var(--primary-blue-dark);
  padding: 1.125rem 1.75rem;
  min-height: 64px;
}

.btn-download:hover {
  background: var(--bg-cream);
  color: var(--primary-blue-dark);
}

.btn-download .btn-icon {
  width: 28px;
  height: 28px;
}

.btn-disabled {
  background: #2a2a2a;
  color: var(--bg-white);
  opacity: 0.55;
  filter: grayscale(0.6);
  cursor: not-allowed;
}

.btn-disabled:hover {
  background: #2a2a2a;
  transform: none;
}

.wave-bottom {
  top: -2px;
  bottom: auto;
  transform: rotate(180deg);
}

/* About Section */
.about {
  background: var(--bg-white);
}

.about-content {
  max-width: 800px;
  margin: 0 auto;
}

.about-content p {
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--text-gray);
  margin-bottom: var(--spacing-md);
}

.about-contact {
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-lg);
  border-top: 2px solid var(--border-gray);
  font-weight: 600;
}

.about-contact a {
  color: var(--primary-blue);
  text-decoration: underline;
}

/* Footer */
.footer {
  background: var(--text-dark);
  color: var(--bg-cream);
  padding: var(--spacing-xl) var(--spacing-sm);
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  text-align: center;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
}

.footer-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
}

.footer-name {
  font-weight: 700;
  font-size: 1.125rem;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--bg-cream);
  font-size: 0.875rem;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--primary-blue-light);
}

.footer-contact {
  font-size: 0.875rem;
}

.footer-contact a {
  color: var(--primary-blue-light);
}

.footer-copyright {
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(240, 248, 255, 0.2);
  font-size: 0.8125rem;
  opacity: 0.8;
}

/* Floating CTA (Mobile Only) */
.floating-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--bg-white);
  box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.15);
  padding: var(--spacing-sm);
  z-index: 999;
  transform: translateY(100%);
  transition: transform var(--transition-normal);
}

.floating-cta.visible {
  transform: translateY(0);
}

.floating-btn {
  display: block;
  width: 100%;
  padding: 1rem;
  background: var(--secondary-coral);
  color: var(--bg-white);
  text-align: center;
  font-weight: 700;
  font-size: 1.125rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  min-height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.floating-btn:hover {
  background: var(--secondary-coral-dark);
  transform: translateY(-2px);
}

.floating-btn:active {
  transform: translateY(0);
}

/* Tablet Styles (768px+) */
@media (min-width: 768px) {
  /* Header */
  .header {
    height: 64px;
    padding: 0 var(--spacing-lg);
  }
  
  .header-icon {
    width: 40px;
    height: 40px;
  }
  
  .header-title {
    font-size: 1.125rem;
  }
  
  .nav-link {
    display: block;
  }
  
  .cta-text {
    display: inline;
  }
  
  /* Hero */
  .hero {
    margin-top: 64px;
    padding: var(--spacing-2xl) var(--spacing-lg);
  }
  
  .hero-container {
    flex-direction: row;
    align-items: center;
    gap: var(--spacing-xl);
  }
  
  .hero-content {
    flex: 1;
    text-align: left;
  }
  
  .hero-icon {
    width: 100px;
    height: 100px;
    margin: 0 0 var(--spacing-md) 0;
  }
  
  .hero-title {
    font-size: 3rem;
  }
  
  .hero-subtitle {
    font-size: 1.25rem;
  }
  
  .hero-buttons {
    flex-direction: row;
  }
  
  .hero-visual {
    flex: 1;
  }
  
  /* Features */
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
  }
  
  /* Screenshots */
  .screenshot-item {
    width: 320px;
  }
  
  /* Download */
  .download-buttons {
    flex-direction: row;
    max-width: none;
    justify-content: center;
  }
  
  /* Footer */
  .footer-container {
    text-align: left;
  }
  
  .footer-brand {
    flex-direction: row;
  }
  
  .footer-links {
    justify-content: flex-start;
  }
  
  /* Hide floating CTA on tablet+ */
  .floating-cta {
    display: none;
  }
}

/* Desktop Styles (1024px+) */
@media (min-width: 1024px) {
  .hero-title {
    font-size: 3.5rem;
  }
  
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .screenshot-item {
    width: 360px;
  }
  
  .download-title {
    font-size: 3rem;
  }
}